DE3002391C2 - Lubricating oil system for motor vehicle internal combustion engines - Google Patents

Lubricating oil system for motor vehicle internal combustion engines

Info

Publication number
DE3002391C2
DE3002391C2 DE3002391A DE3002391A DE3002391C2 DE 3002391 C2 DE3002391 C2 DE 3002391C2 DE 3002391 A DE3002391 A DE 3002391A DE 3002391 A DE3002391 A DE 3002391A DE 3002391 C2 DE3002391 C2 DE 3002391C2
Authority
DE
Germany
Prior art keywords
lubricating oil
internal combustion
combustion engine
electric motor
oil pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE3002391A
Other languages
German (de)
Other versions
DE3002391A1 (en
Inventor
Hermann 7742 St Georgen Papst, (verstorben)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Papst Guenter Helmut Papst Georg Friedrich Jung
Original Assignee
JUNG GEB PAPST HANNELORE ELSE 7742 ST GEORGEN DE
Jung Geb Papst Hannelore Else 7742 St Georgen
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JUNG GEB PAPST HANNELORE ELSE 7742 ST GEORGEN DE, Jung Geb Papst Hannelore Else 7742 St Georgen filed Critical JUNG GEB PAPST HANNELORE ELSE 7742 ST GEORGEN DE
Priority to DE3002391A priority Critical patent/DE3002391C2/en
Publication of DE3002391A1 publication Critical patent/DE3002391A1/en
Priority to US06/488,253 priority patent/US4458644A/en
Application granted granted Critical
Publication of DE3002391C2 publication Critical patent/DE3002391C2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • F01M5/025—Conditioning lubricant for aiding engine starting, e.g. heating by prelubricating, e.g. using an accumulator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
    • F01M2001/0215—Electrical pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
    • F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • F01M5/025—Conditioning lubricant for aiding engine starting, e.g. heating by prelubricating, e.g. using an accumulator
    • F01M2005/026—Conditioning lubricant for aiding engine starting, e.g. heating by prelubricating, e.g. using an accumulator with an auxiliary pump

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft ein Schmierölsystem für Kraftfahrzeug-Brennkraftmaschinen, bei dem zusätzlich zu einer von der Brennkraftmaschine unmittelbar angetriebenen Schmierölpumpe eine unabhängig von dieser Brennkraftmaschine durch einen batteriegespeisten Elektromotor angetriebene Schmierölpumpe vorhanden ist.The invention relates to a lubricating oil system for motor vehicle internal combustion engines, in addition to one directly driven by the internal combustion engine Lubricating oil pump is battery-powered and independent of this internal combustion engine Electric motor driven lubricating oil pump is present.

Es ist bekannt, daß die Lebensdauer üblicher Brennkraftmaschinen, wie sie in Kraftfahrzeugen verwendet werden, weitgehend von der Beanspruchung beim Start, insbesondere beim Kaltstart, der Brennkraftmaschine abhängt. Bei den in Kraftfahrzeugen üblicherweise verwendeten Brennkraftmaschinen besteht die Gefahr, daß diese beim Ingangsetzen unzureichend geschmiert sind.It is known that the service life of conventional internal combustion engines such as those used in motor vehicles are largely dependent on the stress on starting the internal combustion engine, especially when starting from cold depends. In the case of the internal combustion engines commonly used in motor vehicles, there is a risk that these are insufficiently lubricated when starting up.

Durch die DE-PS 7 21 794 ist es bekannt, zur Vorschmierung von Brennkraftmaschinen eine zusätzliche ölpumpe durch einen Elektromotor anzutreiben. Erst bei Erreichen eines vorgegebenen Öldrucks soll die Brennkraftmaschine durch Einschalten des Anlassers und gegebenenfalls der Zündung in Betrieb genommen werden. Es wird also zum Ingangsetzen der Brennkraftmaschine erst eine ölpumpe eingeschaltet, nach Erreichen des vorgegebenen Öldrucks wird ein Druckschalter betätigt, der erst dann den Schalter für den Anlasser an die Batterie anschließt, so daß erst dann der Anlaßvorgang beginnt.From DE-PS 7 21 794 it is known to prelubricate internal combustion engines an additional oil pump driven by an electric motor. Only when a specified oil pressure is reached should the Internal combustion engine is put into operation by switching on the starter and, if necessary, the ignition will. To start the internal combustion engine, an oil pump is only switched on after it has been reached of the specified oil pressure, a pressure switch is actuated, which then turns on the switch for the starter connects to the battery, so that only then does the starting process begin.

j Aus der DE-AS 10 76 440 ist es bekannt, beim Unterschreiten eines Mindestöldruckes die Brennstoffzufuhr zur Brennkraftmaschine abzuschalten und in Leitungen von parallel geschalteten Ölpumpen ein Rückschlagventil einzuschalten.j From DE-AS 10 76 440 it is known when falling below a minimum oil pressure to switch off the fuel supply to the internal combustion engine and in lines to switch on a check valve of oil pumps connected in parallel.

ίο Aus der DE-OS 25 56 948 ist es bekannt, beim Einschalten der Zündung für einen Ottomotor oder ab dem Vorglühen beim Dieselmotor die Schmierölpumpe elektrisch anzutreiben und den Öldruck aufzubauen. Die Betätigung des Anlassers ist erst möglich, nachdem der vorgesehene Öldruck erreicht ist.ίο From DE-OS 25 56 948 it is known when switching on the ignition for a gasoline engine or from the preheating on the diesel engine the lubricating oil pump electrically to drive and build up the oil pressure. The starter can only be operated after the the intended oil pressure has been reached.

Es ist Aufgabe der Erfindung, durch einfache konstruktive Maßnahmen ohne einen nennenswerten zusätzlichen Aufwand, diese zeitliche Verzögerung des Ingangsetzens der Brennkraftmaschine zu verkürzen und doch eine ausreichende Vorschmierung zu erzielen, damit die Abnutzung zu verringern und die praktisch nutzbare Lebensdauer der Brennkraftmaschine zu verlängern. It is the object of the invention, through simple structural measures without an appreciable additional Effort to shorten this time delay in starting the internal combustion engine and but to achieve a sufficient pre-lubrication, so that the wear and tear is reduced and the practically usable To extend the life of the internal combustion engine.

Diese Aufgabe wird bei einem Schmierölsystem der eingangs genannten Art durch die im Kennzeichen des Anspruchs 1 angegebene Verkopplung der Einschaltvorrichtung für den die Schmierölpumpe antreibenden Elektromotor mit der Einschaltvorrichtung für den Anlasser gelöst.In the case of a lubricating oil system of the type mentioned at the outset, this task is carried out by the characteristics indicated in the Claim 1 specified coupling of the switching device for the driving the lubricating oil pump Electric motor with the switch-on device for the starter released.

Da der batteriegespeiste Elektromotor in sehr kurzer Zeit seine volle Drehzahl erreicht und daher die von ihm angetriebene SchmieröliDumpe in sehr kurzer Zeit die volle vorgesehene ölmenge liefert, wird sichergestellt, daß bei Ingangsetzen der Brennkraftmaschine alle zu versorgenden Stellen eine ausreichende Ölmenge bekommen. Since the battery-powered electric motor in a very short time Time reaches its full speed and therefore the lubricating oil pump driven by it in a very short time delivers the full intended amount of oil, it is ensured that when the internal combustion engine is started, all of them are closed supplying points get a sufficient amount of oil.

Es ist zweckmäßig, den die Schmiermittelpumpe antreibenden Elektromotor derart mit der Brennkraftmaschine zu verkoppeln, daß beim Überschreiten einer Mindestdrehzahl der Brennkraftmaschine der die Schmierölpumpe antreibende Elektromotor abgeschaltet wird und die Versorgung der Brennkraftmaschine mit Schmieröl durch die mit der Brennkraftmaschine gekoppelte Schmierölpumpe erfolgt.It is useful to connect the electric motor driving the lubricant pump to the internal combustion engine to couple that when a minimum speed of the internal combustion engine is exceeded, the The electric motor driving the lubricating oil pump is switched off and the supply of the internal combustion engine takes place with lubricating oil by the lubricating oil pump coupled to the internal combustion engine.

Die in der Figur schematisch dargestellte Anlage enthält nur die zum Verständnis der Erfindung erforderlichen Zubehörteile, Ölleitungen und elektrischen Leitungen — alle anderen Zubehörteile und Leitungen sind der besseren Übersicht halber fortgelassen worden.The system shown schematically in the figure contains only those necessary for understanding the invention Accessories, oil lines and electrical lines - all other accessories and lines are for the sake of clarity have been omitted.

so Die Batterie 2 ist über den Zündschalter 3 mit der Zündanlage 4 der Brennkraftmaschine 5 elektrisch verbunden. Die Brennkraftmaschine 5 ist mit einer Lichtmaschine 6 mechanisch gekoppelt, welche in bekannter Weise über nicht dargeslellte Relais die Batterie 2 auflädt. so the battery 2 is via the ignition switch 3 with the Ignition system 4 of the internal combustion engine 5 is electrically connected. The internal combustion engine 5 is equipped with an alternator 6 mechanically coupled, which charges the battery 2 in a known manner via relays not shown.

Bei Einschalten der 2"ündung durch Schließen des Zündschalters 3 wird ferner über den im Ruhezustand geschlossenen Schalter 7 ein Gleichstromnebenschlußmotor 9 eingeschaltet, v/elcher eine erste Schmierölpumpe 10 antreibt. Sobald also der Zündschalter 3 eingeschaltet ist, liefert die Schmierölpumpe 10 über ein Rückschlagventil 17 und die Schmierölleitung 12 an die Brennkraftmaschine Schmieröl, und zwar unabhängig davon, mit welcher Drehzahl sich die Brennkraftmaschine dreht.When switching on the 2 "ound by closing the Ignition switch 3 is also a DC shunt motor via switch 7, which is closed in the idle state 9 switched on, which drives a first lubricating oil pump 10. As soon as the ignition switch 3 is switched on is, supplies the lubricating oil pump 10 via a check valve 17 and the lubricating oil line 12 to the Internal combustion engine lubricating oil, regardless of the speed at which the internal combustion engine is running turns.

Die Brennkraftmaschine 5 ist ferner mechanisch gekoppelt mit einer zweiten Schmiermittelpumpe 14, welche über die Leitung 15 und ein Rückschlagventil 16The internal combustion engine 5 is also mechanically coupled with a second lubricant pump 14, which via the line 15 and a check valve 16

eine der Drehzahl der Brennkraftmaschine proportionale ölmenge an die Schmierstellen der Brennkraftmaschine liefert. Sobald die Drehzahl der Brennkraftmaschinen einen vorgegebenen Wert erreicht bzw. die am Ausgang der Lichtmaschine 6 erzeugte Spannung einen vorgegebenen Wert erreicht, spricht das Relais 19 an und öffnet den Schalter 7, so daß der die erste Schmierölpumpe 10 antreibende Elektromotor 9 abgeschaltet wird. Von dieser vorgesehenen Mindestdrehzahl der Brennkraftmaschine 5 erfolgt also die Schmierölversorgung ausschließlich über die zweite Schmierölpumpe 14.one proportional to the speed of the internal combustion engine amount of oil to the lubrication points of the internal combustion engine supplies. As soon as the speed of the internal combustion engine reaches a predetermined value or the am The voltage generated at the output of the alternator 6 reaches a predetermined value, the relay 19 responds and opens the switch 7, so that the electric motor 9 driving the first lubricating oil pump 10 is switched off will. The lubricating oil supply therefore takes place from this provided minimum speed of the internal combustion engine 5 exclusively via the second lubricating oil pump 14.

In der Figur ist die von der Brennkraftmaschine angetriebene Schmierölpumpe 14 der besseren Deutlichkeit haibar außerhalb der Brennkraftmaschine symbolisch dargestellt Üblicherweise ist diese Schmierölpumpe jedoch in der Brennkraftmaschine integriert Die (nicht bezeichnete) Ölwanne der Brennkraftmaschine dient als Schmierölbehälter bzw. Schmierölvorratsbehälter der mit den Schmierölpumpen 10 und 14 über gestrichelt gezeichnete Schmierölleitungen 21 verbunden ist.In the figure, the lubricating oil pump 14 driven by the internal combustion engine is for better clarity Haibar shown symbolically outside the internal combustion engine, however, this lubricating oil pump is usually Integrated in the internal combustion engine The oil pan (not shown) of the internal combustion engine serves as a Lubricating oil container or lubricating oil reservoir with the lubricating oil pumps 10 and 14 with dashed lines Drawn lubricating oil lines 21 is connected.

Die Erfindung ist besonders vorteilhaft für die in der letzten Zeit entwickelten und nunmehr auf den Markt gelangten Kraftfahrzeuge, bei denen im Stillstand des Fahrzeugs, z. B. an Verkehrsampeln, der Motor abgestellt und nach Beendigung der Stillstandzeit wieder neu in Gang gesetzt wird.The invention is particularly advantageous for those recently developed and now on the market arrived motor vehicles in which the vehicle is stationary, z. B. at traffic lights, the engine is turned off and is restarted after the end of the downtime.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

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Claims (5)

Patentansprüche:Patent claims: 1. Schmierölsystem für Kraftfahrzeug-Brennkraftmaschinen, bei dem zusätzlich zu einer von der Brennkraftmaschine unmittelbar angetriebenen Schmierölpumpe eine unabhängig von dieser Brennkraftmaschine (5) durch einen batteriegespeisten Elektromotor (9) antreibbare Schmierölpumpe (10) vorhanden ist, gekennzeichnet durch eine derartige Verkopplung der Einschaltvorrichtung für diesen Elektromotor (9) mit der Einschaltvorrichtung für den Anlasser, daß beim Einschalten des Anlassers und dem dadurch bewirkten Beginn der Kolbenbewegung gleichzeitig der die zusätzliche Schmierölpumpe (10) antreibende Elektromotor (9) zur Lieferung einer von der Drehzahl der Brennkraftmaschine unabhängigen vorgegebenen Ölmenge eingeschaltet wird.1. Lubricating oil system for motor vehicle internal combustion engines, in which in addition to one of the Internal combustion engine directly driven lubricating oil pump independent of this internal combustion engine (5) lubricating oil pump (10) that can be driven by a battery-powered electric motor (9) is present, characterized by such a coupling of the switching device for this electric motor (9) with the switching device for the starter that when switching on the starter and the resulting start of the piston movement at the same time as the additional Lube oil pump (10) driving electric motor (9) for supplying one of the speed of the internal combustion engine independent predetermined amount of oil is switched on. 2. Schmierölsystem nach Anspruch 1, gekennzeichnet durch eine derartige Verkopplung des die zusätzliche Schmierölpumpe (10) antreibenden Elektromotors (9) mit der Brennkraftmaschine (5), daß beim Überschreiten einer Mindestdrehzahl der Brennkraftmaschine der Elektromotor (9) abgeschaltet wird und die Versorgung der Brennkraftmaschine mit Schmieröl durch die mit der Brennkraftmaschine gekoppelte Schmierölpumpe (14) erfolgt.2. Lubricating oil system according to claim 1, characterized by such a coupling of the additional lubricating oil pump (10) driving the electric motor (9) with the internal combustion engine (5), that when a minimum speed of the internal combustion engine is exceeded, the electric motor (9) is switched off and the supply of the internal combustion engine with lubricating oil by the internal combustion engine coupled lubricating oil pump (14) takes place. 3. Schmierölsystem nach Anspruch 1, dadurch gekennzeichnet, daß in wenigstens einer, vorzugsweise in beiden von den Schmierölpumpen abgehenden Druckölleitungen jeweils ein Rückschlagventil (16, 17) eingebaut ist, das einen Rückfluß des Schmieröles zu der zugeordneten Schmierölpumpe (10, 14) verhindert.3. Lubricating oil system according to claim 1, characterized in that in at least one, preferably a check valve (16, 17) is installed, which allows the lubricating oil to flow back to the associated lubricating oil pump (10, 14) prevented. 4. Schmierölsystem nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Elektromotor (9) als Nebenschlußmotor ausgebildet ist.4. Lubricating oil system according to claims 1 and 2, characterized in that the electric motor (9) is designed as a shunt motor. 5. Schmierölsystem nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Elektromotor (9) ein von einem oder mehreren Permanentmagneten erzeugtes Feld hat.5. Lubricating oil system according to claims 1 and 2, characterized in that the electric motor (9) has a field generated by one or more permanent magnets.
DE3002391A 1980-01-24 1980-01-24 Lubricating oil system for motor vehicle internal combustion engines Expired DE3002391C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3002391A DE3002391C2 (en) 1980-01-24 1980-01-24 Lubricating oil system for motor vehicle internal combustion engines
US06/488,253 US4458644A (en) 1980-01-24 1983-04-25 Motor vehicle with internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3002391A DE3002391C2 (en) 1980-01-24 1980-01-24 Lubricating oil system for motor vehicle internal combustion engines

Publications (2)

Publication Number Publication Date
DE3002391A1 DE3002391A1 (en) 1981-08-20
DE3002391C2 true DE3002391C2 (en) 1986-06-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE3002391A Expired DE3002391C2 (en) 1980-01-24 1980-01-24 Lubricating oil system for motor vehicle internal combustion engines

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US (1) US4458644A (en)
DE (1) DE3002391C2 (en)

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Publication number Publication date
US4458644A (en) 1984-07-10
DE3002391A1 (en) 1981-08-20

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